diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2017-04-12 10:43:49 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2017-04-13 13:41:37 +0200 |
| commit | b0265024b8b5fb35d1e1a1da6be65399e33e122e (patch) | |
| tree | a4e9c2969fbfc0a9f0aaf717aa3eec7691e40741 /net/wireless | |
| parent | mac80211: drop frames too short for FCS earlier (diff) | |
| download | linux-b0265024b8b5fb35d1e1a1da6be65399e33e122e.tar.xz linux-b0265024b8b5fb35d1e1a1da6be65399e33e122e.zip | |
cfg80211: allow leaving MU-MIMO monitor configuration unchanged
When changing monitor parameters, not setting the MU-MIMO attributes
should mean that they're not changed - it's documented that to turn
the feature off it's necessary to set all-zero group membership and
an invalid follow-address. This isn't implemented.
Fix this by making the parameters pointers, stop reusing the macaddr
struct member, and documenting that NULL pointers mean unchanged.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/nl80211.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 9910aae08f1a..5cdb0f9b0168 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2832,8 +2832,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0))) return -EINVAL; - memcpy(params.vht_mumimo_groups, mumimo_groups, - VHT_MUMIMO_GROUPS_DATA_LEN); + params.vht_mumimo_groups = mumimo_groups; change = true; } @@ -2843,9 +2842,8 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag)) return -EOPNOTSUPP; - nla_memcpy(params.macaddr, - info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR], - ETH_ALEN); + params.vht_mumimo_follow_addr = + nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]); change = true; } |